Diptera.info :: Identification queries :: Diptera (adults)
 Tiny fly 1.5mm
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| blowave |
Posted on 30-11-2009 19:35
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 Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Hi, Not sure if this belongs to Agromyzidae, Chloropidae or Ephydridae but I thought the latter as I had another Ephydridae in the same place but it was about 2mm. This one was only about 1.5mm. Found near the base of a south facing wall, I have included a shot of it in the gap between bricks which is normally 1/4" or less than 6.5mm but it can vary a little. The other fly I saw often coming up from the ground which is sandy soil with short wiry grass, this one I only saw once. Taken on 22nd October 2009, a few miles south of Lincoln UK. 5 pics in all. Any clues much appreciated. Janet 
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| blowave |
Posted on 30-11-2009 19:35
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
pic 2
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| blowave |
Posted on 30-11-2009 19:36
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
pic 3
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| blowave |
Posted on 30-11-2009 19:36
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
pic 4
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| blowave |
Posted on 30-11-2009 19:36
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
pic 5
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| Stephane Lebrun |
Posted on 30-11-2009 19:54
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 Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
What about Nostima picta, Ephydridae ?
Stephane. |
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| blowave |
Posted on 30-11-2009 21:38
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Hi Stephane, I'm pleased you suggested that as it is one I had thought was very close, if not the same species although there is only a dorso-lateral view of a male in the gallery. I searched and found a description by Tony Irwin, in his own words.. I wonder if these are Philygria (=Nostima) picta - in this species both sexes have reduced wings, but the reduction is more extreme in the female (- sexual dimorphism rather than polymorphism). Among the Philygria that David suggests, semialata was originally placed in Nostima, distingished by plumose arista and two, rather than three, dorsocentral pairs (including pre-scutellars). It is a species that is most often recorded by pitfall trapping, in Britain associated with grassy heaths. http://www.dipter...;pid=48498 Grassy heaths does fit, I'm in an area with a little of many different types of habitat including old deciduous woodland. I think I can see three pairs of dorsocentral setae, one is just at the edge of the dark area before the scuttelum. I could lighten it to be sure. I have found another set of pics from the 3rd November but only dorsal views and no better than the one I posted, although wings show a little better. If this is quite certain I could add a couple of pics to the gallery, it's a female! Edited by blowave on 30-11-2009 21:38 |
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| blowave |
Posted on 30-11-2009 22:33
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
I think this can be given a name as suggested, Nostima picta. I found another old thread where Tony states the silvery lines are distinctive for this species.  The silvery lines of the orbits continued on the dorsum are fairly distinctive. http://diptera.in...post_41181 Thank you Stephane!  |
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